#include <iostream>
using namespace std;
int main()
{
 //赋值运算
 int a=10;
 
 a=a-5;
 cout<<a<<endl;
 
 a-=5;//意思是a=a-5
 cout<<a<<endl;

 a+=5;//意思是a=a+5
 cout<<a<<endl;

 a*=5;//意思是a=a*5
 cout<<a<<endl;

 a/=5;//意思是a=a/5
 cout<<a<<endl;

    return 0;
}